I don't know many people who didn't feel queezy on their first flight in a light aircraft. I am up to 120 hours now and still get a touch of the butterflies in turbulence - especially if somebody else is flying.
Its something to goes away quickly with exposure - don't worry about it.
Apparently its not uncommon for RAF pilots to send a good portion of their training spewing their guts up. As far as I remember - they get spun around in a simulator for a couple of weeks to get it out of their system!